运动与解偶联蛋白3(UCP3)介导的线粒体活性氧代谢调控研究进展

解偶联蛋白3是线粒体内膜上的一种转运蛋白,研究证实解偶联蛋白3与线粒体能量代谢、线粒体活性氧生成及脂肪代谢等有关。就解偶联蛋白3的结构、分布、表达调控及其介导的线粒体活性氧生成等相关问题作一综述。     

临沂市区主要园林植物害虫种类及其危害

通过调查、采集、室内饲养,对临沂市园林植物害虫进行了比较全面系统的调查。研究了园林植物主要害虫的危害性,特别是园林植物害虫对园林景观和城市环境的危害情况,为害虫防治提供了理论依据。共调查了主要园林植物50余种,鉴定出临沂园林植物害虫种类有100多种。并重点调查了部分发生较重的害虫的危害情况．     

九顶山地区植物群落区系分类研究

对九顶山植物群落野外调查，得到种子植物115科413属613种。通过植物区系成分分析可知，该区区系比较复杂，15种分布类型在谈区均有分布。区系特征如下：具有明显的温带性质，温带成分236属，占总属的57．14％，而且以北温带分布（108属）为主；与热带有一定的亲缘关系。热带成分130属，占31．48％；中国特有植物多，17属18种；区系起源古老。为谈区域物种保护和植被区划提供理论依据。     

《汉书·艺文志》“六艺略”与《隋书·经籍志》“经部”对比研究

《汉书·艺文志》是我国最早的史志目录,《隋书·经籍志》是继《汉书·艺文志》以后第二部重要的史志目录.《隋志》基本继承了《汉志》,但两者也存在不同之处.本文选择《汉志》“六艺略”与《隋志》“经部”为研究对象,先从著录种类的角度进行比较,发现《汉志》未收入纬书,分析其原因;再从著录体例的角度进行比较,找出两者的不同.     

Morphometric and meristic variation in two congeneric archer fishes Toxotes chatareus (Hamilton 1822) and Toxotes jaculatrix (Pallas 1767) inhabiting Malaysian coastal waters

A simple yet useful criterion based on external markings and/or number of dorsal spines is currently used to differentiate two congeneric archer fish species Toxotes chatareus and Toxotes jaculatrix. Here we investigate other morphometric and meristic characters that can also be used to differentiate these two species. Principal component and/or discriminant functions revealed that meristic characters were highly correlated with pectoral fin ray count, number of lateral line scales, as well as number of anal fin rays. The results indicate that T. chatareus can be distinguished from T. jaculatrix by having a greater number of lateral line scales, a lower number of pectoral fin rays, and a higher number of anal fin rays. In contrast, morphometric discriminant analyses gave relatively low distinction: 76.1% of fish were ascribed to the correct species cluster. The observed morphometric differences came from the dorsal and anal spines lengths, with T. chatareus having shorter dorsal and longer anal spines than T. jaculatrix. Overall, meristic traits were more useful than morphometrics in differentiating the two species; nevertheless, meristics and morphometrics together provide information about the morphological differentiation between these two closely related archer fishes.     

试论外来生物立法

笔者通过对比,得出我国现行外来生物法律存在立法目的不准确、立法原则不明、法律制度不完备、管理体制不协调等问题,建议制定专门的、统一的《外来生物法》,将基本原则、法律制度和管理制度加以规定,以利于对外来生物的管理,并为我国的可持续发展作出贡献。     

一类有连续生殖竞争系统的定性分析

本文对一类有连续生殖竞争系统的平衡问题及极限环问题进行详细讨论,所采用的方法是:用图解法讨论平衡问题,简化传统的分析法;用曲率法判别等倾线的关系,简单明了;将模型的平衡点作为动点来讨论,以求结论更富有生态意义。     

瑞安红双林场珍稀濒危植物现状和保护对策研究

通过对瑞安红双林场植物资源的全面调查,发现林场内共有自然分布的珍稀濒危植物23种,隶属于18属、13科．其中列入《中国植物红皮书》的稀有1种、渐危5种;列入《国家重点保护野生植物名录》的有Ⅱ级7种;列入《中国物种红色名录》的有极危1种,濒危1种,易危17种．林场的各个林区均有珍稀植物的分布,但种类最多的是花岩林区,其次是大洋坑林区．对红双林场珍稀濒危植物的种类组成、保护价值、分布现状与数量特征进行了分析,并提出了相应的保护措施．     

Learning About Bird Species on the Primary Level

Animal species identification is often emphasized as a basic prerequisite for an understanding of ecology because ecological interactions are based on interactions between species at least as it is taught on the school level. Therefore, training identification skills or using identification books seems a worthwhile task in biology education, and should already start on the primary level. On the primary level, however, complex interactions could not be taught but pupils are often interested in basic knowledge about species. We developed a hands-on, group-based and self-determined learning phase organized in workstations. About 138 pupils (2nd–4th graders) participated in this study. The two groups received an identification treatment with six different bird species. These were presented either as soft toys or as taxidermy specimen. Both groups scored similar prior and after the treatment (posttest 1) and with a delay of 6–8 weeks (posttest 2). More complex general linear modeling revealed a significant influence of prior knowledge, treatment and of grade (2nd, 3rd or 4th grade) on the first posttest while in the retention test gender differences emerged. We suggest that soft toys may be of equal value for teaching species identification on the primary level compared to natural taxidermic specimen, especially when considering pricing, insensitivity to handling, and contamination with agents used for preservation.

运用信息技术进行艺术设计的创新教育

充分运用信息技术平台、积极探索建构主义理论、重视多元智能发展实战是进行艺术设计的创新教育的有效途径．